Cisco CX-FEIP-2TX= Installation and con?guration Specifications Page 282

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Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 7 Card Provisioning
Provisioning the Alarm Interface Controller
7.5 Provisioning the Alarm Interface Controller
The Alarm Interface Controller (AIC) card can be provisioned to receive input from, or send output to,
external devices wired to the ONS 15454 backplane. (For detailed specifications about the AIC, refer to
the Cisco ONS 15454 Troubleshooting and Maintenance Guide.) You can provision the AIC to:
Generate CTC alarms based on events such as heating or cooling equipment failure, fire alarms,
smoke detection, and other environmental changes that can damage ONS 15454 equipment. These
are called external alarms.
Turn external devices on or off based on a CTC alarm. For example, you can provision the AIC to
turn on an audio or visual device, such as a bell or light, when a critical ONS 15454 alarm occurs.
These triggers are called external controls.
Figure 7-4 shows the flow to and from external devices provisioned through the AIC.
Figure 7-4 AIC alarm input and output
7.5.1 Using Virtual Wires
Provisioning the AIC card provides a “virtual wires” option used to route external alarms and controls
from different nodes to one or more alarm collection centers. In Figure 7-5, smoke detectors at Nodes 1,
2, 3, and 4 are assigned to Virtual Wire #1, and Virtual Wire #1 is provisioned as the trigger for an
external bell at Node 1.
RelayRelay
RelayRelay
CTC alarm turns on
an external device
External device
generates CTC alarm
External control External alarms
Heat
sensor
Smoke
detector
Light
Bell
38566
= External alarm
= External control
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